Radiator-valve.



Patented May16,.1916.

H. 1-.ALLEN.

RADIATOR VALVE.

APPLICATION FILED FEB. 24, 1915.

'UNITED sTA/Es PATENT oFF-ion.

HARRY roNEs ALM-niv,y or SEATTLE, WAsHrneroN;

RADIATOR-vanvn To all whom may concern: o

Be it known that I, HARRY J. ALLEN,l a citizen of the United Statesr of America, and a resident of the cityof Seattle, in the county of King and State of IVashingtomhave'invented certain new and useful Improvements in Radiator-Valves, of which the following is a specification.

My invention relates to valves and comprises certain novel constructions in a valve which is primarily intended for use upon radiators, but which may be adapted for many other uses.

The object of my invention is to provide a valve which may be closed tightly and yet, when opened, will automatically open itself to its full extent, thus avoiding .the possibility of the valve being open just enough to permit steam to enter, and yet not enough to prevent the radiator illing with water.

The novel features of my invention will be pointed out in the specication and particularly defined by the claims.v In the accompanying drawings I have shown the' valve showing both the inlet and outlet openings. Fig. 2 is a sectional elevation ytaken on' a plane at right angles to that of Fig. l.

Figs. 3 and 4 are respective end view and` longitudinal section of the sleeve surrounding the valve stem, which coperates therewith to tightly close the valve. Figs. 5 and 6 are respective cross section and fragmentary side view of that portion of the valve stem which carries the locking means, and Fig. 7 is a cross section upon the line 7-7 of Fig.'1. o

The valve casing l is provided with an inlet l0 and an outlet 11, which are threaded, or otherwise constructed for the'connection of the valve to the supplypipe and the radiator, the form of this construction being variable to suit the conditions of different cases. The casingvis provided with a seat 12, with which the valve engages when the supply of steam to the radiator'is to be cut off. The valve 2 may be of any constructionv found adaptable to the purpose. y

The construction of the valve shown is not essential in my invention, except that the valve head should, preferably, be so connected with the stem 3, that there may be free rotative movement between the two. To secure this result, I have provided the Patented May 16, 1916.

Application led February 24,` 1915. Serial N o. 10,347.

stem with a head 30, which lits within a recess inthe body of the valve head and is secured .therein by fa washer 'ori threaded plug 3l, which is sufficiently loose in its engagement with ythe valve stem, to' permit of rotative movement. n l Uponthe valve stem,'at a distance from the head whichV should equal or slightly exceed the distance through which the valve travels in opening, are placed one part of interlocking mechanisms by which the valve maybe tightly forced upon its seat.k Surrounding. the valve'stem, extending from just below the point indicated away vfrom thel valve, is a. sleeve 4, which 'carries the complemental parts of the valve locking mechanism. i y This valve locking mechanism consists,'in the type ofconstruction Ashown herein, of complemental" interrupted threads, having such segmental extent aswill permit reciprocative ,axial movement-of vthe parts, when placed in. proper` relation.: I have shown these interrupted threads as consisting of twofparts, placed on opposite sides of the valve stem and of its inclosing sleeve. They arethereforemade to extend through not more than 90; t Upon kthe stem I have shown two'threads 32 upon one side and one yupon the other, this being suiicient |for the de` sired purpose.

Thesleeve 4'isshown `ras screw threaded into :thec'ap member 13 of the valve. `Its length' is suiiicient to permit the upward movement ofthe valve stem which will fully open the valve. 'The lowerv inner' part of the capmember 13, is preferably provided with a seat 14, againstwhichtheupper surface Lof' the valve contacts whenit is in open position. The sleeve 4has interior threads 'formed-in its lowerend which are complemental to the segmental or interrupted threads 32 of the stem. One or moreof thesev threads40, next tothe valve, are made tol extend throughy those yportions of the periphery which,I highery up, are cut vaway to form the. longitudinally extending grooves 41, these grooves rextending upwardly to the kupperend of the sleeve, and are complemental and form ay guide for, the Vsegmentalthreads 32 of the stem, `rwhen the f valve stem passes.

While I have referred to these interlockis the simplest and most practical"type'of cam surface to construct.

The valve should preferably be provided with means whereby, when the interlocking members by which the valve is forced upon its seat, are released, the valve will, at once and automatically, be opened to its maximum extent. The simplest and surest method of doing this is to apply a spring which will be continuously active upon the valve to open it. I have therefore provided aspring 5, which is located outside of the valve casing. This spring is shown as located within a sleeve 50 and surrounding thestem 3. The sleeve -50 is a continuation of a nut 51, which is used as the adjustable member of a packing gland 52, and is screw threaded upon a boss y53, `through which the The valve is opened through a handle, which is secured upon a square or otherwise non-circular section 33, of the valve stem. e

Should it be desired to usethis valve upon hot water radiators, vorv to permit the radiator to ll with water, this may be done as follows: .At the point 7 a small hole is provided, within the casing and outside of the valve seat, which connects an inlet and outlet opening of the valve casing. This vmay be stopped when desired, by means of a plug or small screw. `By having this opening, the velocity of the entering steam ywill prevent back-flow of water` until the radiator has become lled. It will thus be possible to use the radiator as a hot water radiator, if desired.

In the locked or closed position of the valve as shown` in Fig. 1, the segmental thread sections 32 of the stem, are in engagement with the segmental sections 42 ofthe sleeve 4, and the valve is held rmly upon its seat. To open the valveit is turned through a small arc, suflicient to bring the segments 32 into registry with the axially lextending grooves, or channels, 41 of the sleeve, in which position the valve may be moved in U an axial direction o of its seat. In fact,

the action of the spring 5 will be suiiicient to cause this reciprocative movement, without necessity for applying anyA force for this purpose. rlhe valve will be held by the spring in lits fully opened position.

When it is desired to close the valve, it is pushed downward -until the segments 32 contact Awith the thread 40 which extends across the end of the guide-way '41. The

valveis then turned'to en age its segments 32 with the segments42o the sleeve. The engagedy inclined surfaces act to :force the valve firmly upon its seat. The extent of thesehsurfa'ees and the angle of inclination, may easily be formed such that the valve 'may be securely seated and without having to turn through any very great arc, or they vmay be of such extent that the stem may be givenl one or more full turns, as may be necessary, due to wearing down of the valve seating members. The value of threads 40,

ywhich extend across the guide-way 41, is

merely to serve as a stop for the segments 32, when the latter have reached the point for entering the spaces between the threads 42.v Such stop may be provided with another form of construction. The extension of the guide-way 41throughout the distance of upward travel of segments 32, holds the valve stem in proper position for ythe passage of these segments through the spaces between the segments 42 of the sleeve.

4ILIaving thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States of America, is

1. The combination with a valve stem having interrupted threads upon a short section thereof and a sleeve surrounding said stem and having longitudinally extending grooves accommodating the threads of the stem to permit a reciprocatory movement therebetween, said sleeve having complementary interrupted threads in position to engage with those of the stem only when the stem is in valve-seating position.

,2. The combination with avalve stem having interrupted threads upon a short section thereof and a sleeve surrounding said stem and having longitudinally extending grooves accommodating the threads of the stem to permit a reciprocatory movement therebetween, said sleeve having complementary interrupted threads in position to engage with those of the stem only when thestem is in valve-seating position, and a spring surrounding the valve stem and acting to move the stem into valve-open position.

3. In a valve, in combination, a valve stem having thereon interrupted threads, a sleeve inclosing the vstem and having grooves therein forming guides for the passage of said threads of the stem in an axial direction and having threads complementalr to those on the stem and located to coperate therewith in securing the valve on its seat.

4. The combination with a valve and its seat, of a valve stem having interrupted threads thereon, a sleeve inclosing the stem and having threads thereon complemental to those of the stem, and adapted to engage the threads on the stem only when the stem is in valve-seating position, the threads of the sleeve farthest removed from the seat being interrupted to permit reciprocative movement of the interrupted threads on the stem therebetween and a thread nearer the valve being continued into the path of the threads of the stem to form a stop for the reciprocation thereof.

5. The combination with a valve and its seat, of a valve stem having interrupted threads thereon, a sleeve inclosing the stem and having threads thereon complemental to those of the stem, and adapted to engage the threads on the stem only When the stem is in valve-seating position, the threads of the sleeve farthest removed from the sea-t being interrupted to permit reciprocative movement of the interrupted threads on the stem therebetween and a thread nearer the valve being continued into the path of the threads of the stem to form a stop for the reciprocation thereof, a handle member secured upon the outer end of the valve stem and a spring between said handle member and the casing acting to draw the valve oif its seat.

6. The combination With a valve stem and an inclosing sleeve provided with means permitting free axial reciproeation and preventing rotation in opening and closing, and thread members engaging the tWo together at the end of the closing movement, permitand having threads thereon complemental to those of the ste1n,'and adapted to engage the threads on the stem only When the stem is in normal valve-seating position, the threads of the sleeve farthest removed yfrom the seat ybeing interrupted to permit reciprocative movement of the interrupted threads of the stem therebetween, and a thread nearer the valve being continued into the path of the threads of the stem to form a stop for thereciprocation thereof, said thread being continued uninterruptedly in the direction of the valve to'permit rota- -tion of the stem to securely seat the valve.

Signed at Seattle, Washington, this 17th day of February, 1915.

HARRY JONES ALLEN. Witnesses:

HENRY L. REYNOLDS, JAMES E. SPRoLL.

Copies ot this patent may be obtained for nve cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

